From back cover: Medusa--most terrible of the Gorgons! Men tremble at her name. Her hair is made of living snakes, and whoever looks into her face is turned to stone. And it is HER head that young Perseus must bring to the king! So begins the adventures of great hero. As the gods command, Perseus must travel to the end of the world, beyond the Ocean, and into the kingdom of Night. He must outwit the Three Gray Sisters, pass through the land of the fierce giant Atlas, and meet in mortal combat the monstrous dragon from the sea.